Clinical Application and Effect of Age on the Tuning Property Test in cVEMP

Vestibular Evoked Myogenic Potential (VEMP) is used as an otolithic function test, with characteristic findings reported in various inner ear disorders and age-related effects. In Meniere’s disease, the optimal frequency is believed to shift from 500 Hz to 1000 Hz due to the presence of endolymphatic hydrops. This frequency shift is also observed in elderly individuals. In a study where cVEMP was measured at both 500 Hz and 1000 Hz, we investigated the disease-specific characteristics of frequency responses and the effects of aging. The subjects were 175 cases (ages 10–97 years; mean age 55.0 years). The results of cVEMP testing were determined using the corrected amplitude (CA) and asymmetry ratio (AR) at 500 Hz. Frequency characteristics were evaluated using the 500–1000 Hz slope.